Audi S4 vs Alfa Romeo Giulia

What's the difference?

The S4 and S5 range continues to represent a great formula for performance you can live with every day. They're arguably the sweetest balance Audi produces, actually. All come fantastically equipped, with cabins that feel truly special, and we’re lucky they can be had in a choice of five bodystyles.  

The Giulia is a love letter to the increasingly lost art of the sporty executive sedan. As refined as it is beautiful and oh-so elegant to drive, it’s a reminder of why we always love Alfa Romeo, even when the odds are against it.

Emotional cars like this are hard to come by and they will soon be gone, replaced by something new. The future is not necessarily worse, but it will be different, so if a sporty European sedan with a combustion engine is calling out to you don’t miss your opportunity to drive the Giulia while it still exists in this form.

The S4 sedan and Avant have scored the bulk of design updates, with all new and recontoured side panels including the sedan’s C-pillar matching what was applied to the A4 earlier this year. 

This is paired with new front and rear facias and lighting for a subtle but extensive rework of the fifth-generation S4’s conservative look. 

The S5 Sportback, Coupe and Cabriolet get S5-specific new lighting and facias, but no sheetmetal changes. As before, the Coupe and Cabriolet ride on a 60mm shorter wheelbase than the Sportback, sedan and Avant.

The S5s also get Matrix LED headlights as standard which do a neat animated sequence when you unlock the car. 

Other visual hallmarks include new S4-specific 19-inch wheels, with S5 stepping up to its own unique 20-inch wheel. The six-piston front brake calipers are appropriately painted red, and there’s S-specific adaptive dampers under there too. All variants aside from the Cabriolet get a lip spoiler on the rear.

On the inside, there’s a new centre console and bigger 10.1-inch multimedia screen, while the Audi Virtual Cockpit driver instrument display now offers a hockey stick-style rev counter in additional to traditional dial layouts.

Like any good Alfa Romeo should be, the Giulia is a work of art. It’s sleek, sharp, and immaculately proportioned.

This most recent update has artfully refined a formula too good-looking to mess with. The increasingly dorky headlamps from the previous car have been swapped out for a more contemporary all-LED set, with a three-bar DRL pattern.

The grille has also been tweaked for this update for a more modern style, and the Veloce is now graced with the iconic and more aggressive sport two-tone alloy wheels in the traditional five-hole 'tele-dial' style.

It’s effortlessly attractive, and instantly recognisable as an Alfa on the road. I can’t think of a better way to stand out in today’s executive sedan landscape.

The interior has received less of an upgrade for the 2024 model year, with the same core parts. The major change is the old-school analogue instrument cluster being swapped out for a slick 12.3-inch digital unit.

The puzzling thing about this is the 8.8-inch central multimedia screen hasn’t been upgraded in-kind, making a strange contrast between the sharp and fast digital instruments, and the laggy and dull multimedia panel.

At least it effortlessly sits behind the curvaceous design of the dash as to not interrupt a good shape.

There are of course plenty of other touches which I love. The leather seats look and feel the part, as do the real metal paddle shifters which float behind the simple yet refined and sporty steering wheel.

The push-to-start button on the wheel is reminiscent of other Italian sports machines, while the tasteful smattering of leather, gloss plastic, and textured surfaces keep the premium feel on-track.

Some areas I’m not so keen about: Some of the interior plastics, particularly for buttons and toggles, feel cheaper than they should, and the door cards are oddly basic considering how much attention has been given to every other part of this car’s look and feel.

The biggest practicality change among the five S4 and S5 variants is their upgrade to the latest version of Audi’s MMI multimedia system, which steps up to a 10.1-inch touchscreen and drops the scroll wheel from the centre console.

It also boasts ten times the computing power of the version it replaces and uses this and an on-board sim card to access Google Earth maps for navigation and Audi Connect Plus that offers driver information such as fuel prices and parking information as well as point of interest search and weather information, plus the ability to make emergency calls and seek roadside assistance.

There’s also a wireless phone charger, but using Apple CarPlay will still require a cord as per Android Auto.

I only drove the S4 Avant and S5 Sportback at their media launch, which are clearly the most practical of the five, but from our experience with the previous versions, each looks after its occupants well in terms of space and storage. Back seat accommodation is clearly not a priority in the Coupe and Cabriolet, but there’s three other variants if that’s what you’re looking for. 

The Cabriolet can open its automatic folding soft top within 15 seconds, at speeds of up to 50 km/h.

The Giulia is an old-school low-slung sports sedan. Many will prefer the SUV sensibilities of the Stelvio, with its bigger hatch-opening boot, and its higher ride height can better accommodate less mobile passengers, and makes it easier to fit child seats and the like.

For those willing to trade those things away for a superior drive experience, the Giulia is still solid to live with every day, but has a few drawbacks.

For example, those strangely basic door cards offer only a tiny map pocket with a nook I’d hardly describe as a bottle holder.

The centre console offers two larger bottle holders with variable edges, but there’s also not much else in the way of storage in the cabin aside from a smaller-than-average glove box and armrest console box.

The big win for me is the physical dial set and shortcut buttons for all the key climate functions, making it easy to operate while you’re concentrating on driving.

At least the seats are well bolstered, and front passengers are treated to plenty of adjustability. Visibility is okay, and it was easy for me to find a comfortable driving position at 182cm tall.

The rear seat is a similar story. It’s tighter, and you have to duck down below the roofline to get into it.

Once inside, I was pleasantly surprised to find enough room for my knees and somewhere for my feet to slide behind my own driving position, although the centre position is all but useless thanks to an enormous raise for the driveshaft.

Headroom is passable, but you wouldn’t want to be much taller than me. 

There are, again, tiny bottle holders in the doors, and a further two in the drop-down armrest. Rear seat passengers get dual adjustable air vents on the back of the centre console, one USB 2.0 outlet, and elastic nets on the backs of the front seats.

The boot measures 480 litres which is up there with a lot of mid-size SUVs, but because it’s a sedan, access is more limited, and it won’t accommodate as many awkwardly-shaped objects.

The Giulia we’re looking at for this review is the mid-spec Veloce, which costs $74,950 before on-road costs, sitting above the base Ti ($68,450) and below the top-spec Quadrifoglio ($153,700).

Natural rivals from Germany include the Audi A4 45 TFSI ($77,869), BMW 320i M Sport ($80,200) and Mercedes-Benz C200 ($89,900) all of which suddenly make the attractive Alfa look like a not-half-bad deal.

But then there’s always the Genesis G70 (from $63,000 in equivalent turbo 2.0L form) to bring the value equation back to reality.

Standard stuff at this grade includes 19-inch alloys, an 8.8-inch multimedia touchscreen and a 12.3-inch digital instrument cluster (new for the 2024 model year), dark contrast exterior highlights, leather seat trim with heated front seats and steering wheel, aluminium interior detailing and shift paddles with extended leather trim on the dash, updated LED headlights and DRLs, dual-zone climate, push-start ignition and keyless entry, tinted rear windows, and a 14-speaker Harman Kardon audio system.

Performance-wise, the Veloce also scores a limited-slip rear differential to match its punchy engine.

The tech feels a bit old, and the interior has a dated ambiance to it compared to the more open and digitised spaces of its rivals, but there’s something to be said for how organic the Alfa feels. More on this later.

Audi has taken an ‘if it ain’t broke’ approach with the mechanicals, with all S4 and S5 models unchanged with this update. So the centrepiece continues to be the single-turbocharged 3.0-litre V6 that produces 260kW and 500Nm, with the latter available from a broad 1370-4500rpm.

The rest of the drivetrain is also unchanged, with the venerable but excellent ZF eight-speed torque converter auto paired with the Quattro all-wheel drive system that can send up to 85 per cent of drive to the rear wheels. 

The Veloce might not pack a Ferrari-derived six-cylinder engine like the Quadrofoglio, but its smaller 2.0-litre four-cylinder turbocharged petrol engine hardly wants for power.

Packing 206kW/400Nm it outpunches six cylinders of old easily, and is still capable of sprinting to 100km/h in a hot-hatch baiting 5.7 seconds to a Vmax of 240km/h.

It even sounds fantastic, as it flies up the rev-range living up to every bit of the Alfa promise. Peak power arrives at 5250rpm, but peak torque hits at 2250rpm.

Smooth shifts are provided courtesy of an eight-speed traditional torque converter automatic transmission.

Official combined fuel figures range from 8.6L1/00km for the S4 sedan to 8.8L/100km for the Avant, Coupe and Sportback, while the heavier Cabriolet steps up to 9.1L/100km. 

All are pretty good considering their performance potential and the size of these cars, plus the fact that they only require 95 RON Premium Unleaded fuel.

All have a 58-litre fuel tank, which should enable a range of at least 637km between fills based on the Cabriolet’s figure.

The 2.0L turbocharged engine has an official combined cycle fuel consumption figure of just 6.1L/100km, although I saw 9.0L/100km in my time with it.

I’ll admit it was being enthusiastically driven, and treated to lots of urban commuting.

The Giulia has a 58-litre fuel tank and requires mid-shelf 95 RON premium unleaded fuel. Its approximate range on a full tank at the official consumption is 951km.

The S4 and S5 range were already an excellent balance between everyday comfort and a genuine sporting edge, and nothing has changed with this update.

I spent time behind the wheel of the S4 Avant and S5 Sportback at their media launch, and both managed to deliver the proper Audi luxury experience over some pretty rough rural roads, while always feeling a bit more sporting than a regular A4 or A5. That’s with the Drive Select left in the default mode, but you can shift that sporting personality up a few notches (while scaling back the comfort), by selecting Dynamic mode. 

My preferred means of adjusting their personality is by simply tugging the transmission selector back to activate S mode, which livens up the engine and transmission without stiffening up the suspension. 

Across the five S4 and S5 bodystyles, there is some variance in performance potential, with the S4 sedan and S5 Coupe topping the performance chart with 0-100km/h boasts of 4.7s, with the S5 Sportback trailing them by 0.1s, the S4 Avant by a further 0.1s and the Cabriolet managing a still-fast 5.1s claim.

Another area I consider the S4 and S5s to get just right is their exhaust note. It is adaptive, but there’s nothing synthetic about it, and the generally muted and distinctly V6 burble is always there to remind you that you’re aboard a proper performance model, but not in such a way that it will annoy you, or your neighbours. Polite performance, if you will.

Put simply: The Giulia is a celebration of Alfa Romeo. Yes. Even with a humble 2.0-litre turbocharged engine and an automatic transmission, this is a deeply emotional car. A riveting experience from behind the wheel.

Fly round corners, your eyes wide, exclaiming ‘magnifico!’ as the Giulia gracefully leans in, the rear LSD, sporty tyres, and wonderfully tight steering working together in harmony as you eke out just a smidge of tyre roar.

Laugh out loud to yourself, as you plant the accelerator, hear the muted rumble of the surprisingly angry little engine, and feel the turbocharger kick in half a second later as you power out.

‘Eccezionale!’ You’ll think, as you feel the click of the immensely satisfying metal paddle-shifters, and the transmission responds in-kind, the engine roaring up the revolutions with enthusiasm.

Sure, the Veloce grade is not as raw, or as wild, or near as fast as the top-grade Quadrofoglio, but all of the exciting spirit of  that car is still here, and at a little over half the price, too. The Veloce is an absolute delight to drive.

It has such poise, makes such a fine sound, and does it all so gracefully. This is how you make a car feel as one with the driver.

Even the ride is deeply impressive. It’s not too harsh or noisy, while gifting the chassis just the right amount of lean in the corners and allowing enough play for it to remain controlled over bumps.

Not only does it work well when you’re driving as it's clearly intended to be driven, but around town it’s quiet and refined inside, living up to the promise of a luxury sedan.

The seats and bolstering are great, the visibility isn’t too bad, and while I’ll complain about the slightly laggy software on the multimedia screen, the digital dash is responsive and the physical climate controls are welcome.

It’s not all perfect. If it were, I think it might cease to be an Alfa Romeo and start sprouting BMW badges.

For example, our test car, with less than 2000km on the odometer, had various inconsistent rattles emanating from the plastic garnish around the digital dash, and somewhere behind the back seat.

Regardless, driving this car has made me a little sad Alfa will be putting this wonderful platform behind it in pursuit of more electrified goals.

I can only hope wherever the Giulia nameplate goes next, it retains the spirit of this version.

The same safety equipment suite is standard on every Giulia variant.

Advanced active gear includes auto emergency braking, lane keep tech, blind-spot monitoring with rear cross-traffic alert, driver attention alert, and adaptive cruise control.

It also scores front and rear parking sensors, and a reversing camera with guidelines. 

The Giulia’s maximum five-star ANCAP safety rating expired at the end of last year, as it was originally rated back in 2016. The facelifted model is ‘unrated’ relative to ANCAP’s current standards.

Audi continues to offer a three year, unlimited kilometre warranty, which is in line with BMW but lags behind the five years offered by Mercedes-Benz these days. This also contrasts with the five year norm among mainstream brands, which is punctuated by the seven year warranties of Kia and SsangYong.  

Service intervals are a convenient 12 months/15,000km though, and the same five year ‘Audi Genuine Care Service Plan’ offers capped price servicing for the same $2950 total over five years applies to all S4 and S5 variants. This is only marginally more than the plans offered for regular petrol A4 and A5 variants, so you’re not being stung for the thoroughbred versions.

Alfa finally updated its warranty to a more industry-standard five-years and unlimited kilometres in 2022.

Service intervals occur at 12 monthly or 15,000km intervals for the 2.0-litre turbocharged variants. Pricing was not available for the model year 2024 version yet in the brand’s online calculator, but to give you an idea for the pre-facelift version, pricing came in between $345 and $1065 per visit, averaging $573 per year for the first five years of ownership. Not cheap, but not as expensive to run as you might expect.

One thing you might want to keep in mind is depreciation. Boring, I know, but even late model examples of the Giulia and Stelvio have been hit particularly hard by the depreciation stick according to residual values we searched up on Autotrader.

For reference, the Genesis G70 and BMW 3 Series have both fared much better in equivalent 2.0-litre turbo forms.